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A.590 | EcoArt 2002
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Name: A.590
Reference: EcoArt 2002
Description: This woodland of valley bottoms and riparian corridors of southern California and Baja California occurs on deep soils of gentle valley floors and on raised stream terraces. Soils are usually fine-textured. This alliance grows in a region dominated by a Mediterranean climate, with mild, moist winters and warm, dry summers. Average yearly precipitation totals are about 80 cm. Because of the fine-textured soils and topographic location of stands, soil moisture is relatively abundant and constant. Stands are found between 50 and 1220 m elevation. This woodland is characterized by the importance of ~Quercus engelmannii$ in the tree canopy. ~Quercus agrifolia$ is a common associate, though it must be less important than the ~Quercus engelmannii$ for the stand to belong to this alliance. As sites become more mesic, ~Quercus agrifolia$ becomes a more important component of the canopy. Other trees present may include ~Quercus kelloggii, Quercus dumosa$, and ~Juglans californica$. ~Quercus dumosa$ hybridizes with ~Quercus engelmannii$, and individuals intermediate between the two species can often be found. The ground is typically dominated by annual graminoids. 
Accession Code: VB.CC.2235.A590
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: II.A.5.N.a
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: QUERCUS ENGELMANNII WOODLAND ALLIANCE
  Code: A.590
  Common: Engelmann Oak Woodland Alliance
(convergence) and Synonyms:
(undetermined) Quercus engelmannii Woodland Alliance